396244290 has 32 divisors (see below), whose sum is σ = 1024140096. Its totient is φ = 97536960.

The previous prime is 396244283. The next prime is 396244291. The reversal of 396244290 is 92442693.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (396244291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507616 + ... + 508395.

It is an arithmetic number, because the mean of its divisors is an integer number (32004378).

Almost surely, 2^396244290 is an apocalyptic number.

396244290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

396244290 is an abundant number, since it is smaller than the sum of its proper divisors (627895806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396244290 is a wasteful number, since it uses less digits than its factorization.

396244290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016034.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 396244290 is about 19905.8858129951. The cubic root of 396244290 is about 734.4930188838.

The spelling of 396244290 in words is "three hundred ninety-six million, two hundred forty-four thousand, two hundred ninety".